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WorksheetsEarthquakes & Volcanoes Test Review
Total questions: 18
Worksheet time: 9mins
Why is the risk of earthquakes high along the Pacific coast of the United States?
there have been no earthquakes there lately
overpopulation
that’s where an oceanic and continental plate meet
satellites have detected increasing elevation of the ground surface.
What is the major volcanic belt that circles the Pacific Ocean?
ring of fire
ring of rock
ring of water
ring of plates
What is a Hot Spot?
An area where to plates move apart and magma comes to the surface.
An area where two plates rub together and the friction creates magma.
An area where magma from deep within the mantle melts through the crust above it.
An area where one plate subducts and melts and the magma rises to create a volcano.
When plates converge, they make a string of volcanoes. What is this called?
volcanic chain
mid-ocean ridge
fissure volcanoes
At which boundaries do volcanoes form?
divergent and transform
convergent and transform
convergent and divergent
volcanoes do not form along plate boundaries
How do volcanoes form at B?
Plates separate and magma flows up through the openings
One plate subducts, melts into magma, and comes back through cracks.
Pressure from the atmosphere pushes magma through the crust
Magma melts through the crust to make a volcano.
How do volcanoes form at A?
Plates separate and magma flows up through the opening
One plate subducts, melts into magma, and comes back through cracks.
Pressure from the atmosphere pushes magma through the crust
Magma melts through the crust to make a volcano.
At which boundaries to the strongest earthquakes happen?
Transform and divergent
Divergent and convergent
Transform and convergent
Anything is possible
How far did the P-wave go 1500 miles?
4 minutes
5 minutes
6 minutes
7 minutes
What causes the most earthquake-related deaths and injuries?
P waves
landslides
damage to buildings and other structures
Why is the threat of damage by Earthquakes greater today than it was 2,000 years ago?
We know more today about earthquakes.
There are less people today to experience damage
There are more densely populated areas and buildings today and near earthquake zones.
Engineers are designing buildings that can better withstand Earthquakes. What would be a way they could do this?
Have buildings that are pliable (flexible) and not brittle.
Make the buildings shorter so less material will fall.
Make the buildings wider so there is a stronger base to keep them standing.
Have buildings that are made with rigid materials and cannot sway
People who live near a volcano can prepare their houses for a volcanic eruption by having all of the following except...?
Insulated doors
insulated windows
vents that close from the outside
carpet floors
Volcanic eruptions can have devastating global effects. Which of the following is NOT a global effect of an eruption?
acid rain
avalanches
tsunamis
aviation safety (flying)
Volcanic eruptions can have devastating local effects. Which of the following is NOT a local effect of an eruption?
property (building) damage
contaminated food sources
contaminated water sources
global weather changes
What is the best way to protect yourself in an earthquake?
stand under a tree!
hug your mom!
go to a basement!
drop, cover your head, and hold on!
If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?
It is inactive
It is probably about to erupt
It is a good source of energy
It is dormant
What's the different between magma and lava?
Magma is hot, lava is cold
Magma bubbles, lava does not
Magma is under the Earth's surface, lava is above the surface
Lava is under the Earth's surface, magma is above the surface
